diff -r 000000000000 -r 4f2f89ce4247 WebCore/rendering/RenderImage.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/WebCore/rendering/RenderImage.h Fri Sep 17 09:02:29 2010 +0300 @@ -0,0 +1,127 @@ +/* + * Copyright (C) 1999 Lars Knoll (knoll@kde.org) + * (C) 1999 Antti Koivisto (koivisto@kde.org) + * (C) 2006 Allan Sandfeld Jensen (kde@carewolf.com) + * (C) 2006 Samuel Weinig (sam.weinig@gmail.com) + * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010 Apple Inc. All rights reserved. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public License + * along with this library; see the file COPYING.LIB. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + */ + +#ifndef RenderImage_h +#define RenderImage_h + +#include "RenderReplaced.h" + +namespace WebCore { + +class HTMLMapElement; + +class RenderImage : public RenderReplaced { +public: + RenderImage(Node*); + virtual ~RenderImage(); + + bool setImageSizeForAltText(CachedImage* newImage = 0); + + void updateAltText(); + + void setCachedImage(CachedImage*); + CachedImage* cachedImage() const { return m_cachedImage.get(); } + + HTMLMapElement* imageMap() const; + + void resetAnimation(); + + virtual bool hasImage() const { return m_cachedImage; } + + void highQualityRepaintTimerFired(Timer*); + +protected: + virtual Image* image(int /* width */ = 0, int /* height */ = 0) { return m_cachedImage ? m_cachedImage->image() : nullImage(); } + virtual bool errorOccurred() const { return m_cachedImage && m_cachedImage->errorOccurred(); } + + virtual void imageChanged(WrappedImagePtr, const IntRect* = 0); + + virtual void paintIntoRect(GraphicsContext*, const IntRect&); + void paintFocusRings(PaintInfo&, const RenderStyle*); + virtual void paint(PaintInfo&, int tx, int ty); + + bool isWidthSpecified() const; + bool isHeightSpecified() const; + + virtual void intrinsicSizeChanged() { imageChanged(imagePtr()); } + +private: + virtual const char* renderName() const { return "RenderImage"; } + + virtual bool isImage() const { return true; } + virtual bool isRenderImage() const { return true; } + + virtual void paintReplaced(PaintInfo&, int tx, int ty); + + virtual int minimumReplacedHeight() const; + + virtual void notifyFinished(CachedResource*); + virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction); + + virtual int calcReplacedWidth(bool includeMaxWidth = true) const; + virtual int calcReplacedHeight() const; + + virtual void calcPrefWidths(); + + virtual bool usesImageContainerSize() const { return m_cachedImage ? m_cachedImage->usesImageContainerSize() : false; } + virtual void setImageContainerSize(const IntSize& size) const { if (m_cachedImage) m_cachedImage->setImageContainerSize(size); } + virtual bool imageHasRelativeWidth() const { return m_cachedImage ? m_cachedImage->imageHasRelativeWidth() : false; } + virtual bool imageHasRelativeHeight() const { return m_cachedImage ? m_cachedImage->imageHasRelativeHeight() : false; } + virtual IntSize imageSize(float multiplier) const { return m_cachedImage ? m_cachedImage->imageSize(multiplier) : IntSize(); } + virtual WrappedImagePtr imagePtr() const { return m_cachedImage.get(); } + + int calcAspectRatioWidth() const; + int calcAspectRatioHeight() const; + +protected: + // The image we are rendering. + CachedResourceHandle m_cachedImage; + +private: + // Text to display as long as the image isn't available. + String m_altText; + + static Image* nullImage(); + + friend class RenderImageScaleObserver; +}; + +inline RenderImage* toRenderImage(RenderObject* object) +{ + ASSERT(!object || object->isRenderImage()); + return static_cast(object); +} + +inline const RenderImage* toRenderImage(const RenderObject* object) +{ + ASSERT(!object || object->isRenderImage()); + return static_cast(object); +} + +// This will catch anyone doing an unnecessary cast. +void toRenderImage(const RenderImage*); + +} // namespace WebCore + +#endif // RenderImage_h